Water-submerged air-chamber for water-pipes.



H. H. YORK. BMERGED APR CHAMBER FOR WATER PIPES.

WATER SU APPLICATION HLED APR. 27. I916- Patented Feb. 20, 1917.

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' UNITED STATES PATENT OFFICE.

HOWARD H; i onic, 0F LOGANSPORT, INDIAIINA.

WATER-SUIBMERGED AIR -CHAMBER FOR WATER-PIPES.

Specification of 'Iietters Patent.

Patented Feb. 20,1917.

Application filed April 27 1916. Serial N 0. 93,988.

der pressure, and a ramming action from the valves of a near-by pump, or impact due to the opening noises andwalso tends to destroy the plumbmg. H

The object of my invention. is to cushion the hydraulic impacts, from whatever-cause arising, With-air contained in a chamber which is so submerged in the water of the pipe or other conductoras to resist the air pressure from Within the chamber by a like outside water pressure, and to maintain an automatic balance which will not be disturbed bythe leakage of air from the chain her through its walls, which is otherwise unavoidable. 4

The object also is pressure in the chamber'without dismantling it and its associated parts, or without stopping the pump where myv invention is usedwith a. .pump.

A further object is to provide a simple and durable devicewhic'h can be readily applied to any water service already installed. I accomplish the above, which will hereinaft nism illustrated in ing, in which- Figure 1, is an elevation and partial vertical section of a nected in operative position therewith, said device being in vertical is a cross section of my invention on the line 22 of Fig. 1. Like characters parts in the two views.

have shown my invention as applied to the discharge pipe of a pump, but it may be applied to the service pipe in which is supplied with water from any suitable source, as for example, b a municipal water works, or it may be applied, on a suitably larger scale, to the Water mains'in the streets of a city.

er appear, by the mechathe accompanying drawresiding at and closing of,faucets,-as in house service, causes disagreeable pounding to provide easy means for regulating the air and other objects I pump with my device consection, and Fig. 2

of reference indicate like,

any building The pump 3, of any usual construction, has a supply pipe 4 and a I'intrbducea T in the latterandfrom it run a pipe 6 which discharges through the upper end of-a closed tank7. lower head 8 of the tank is an air-pipe 9 which is-provided with a cut-off valve 10, on the outside of the tank and terminates with a threaded end for theattachment of discharge pipe 5..

Through the I the discharge pipe of an air-pump (not shown). A threaded inner portion of the pipe 9 is screwed into a cross bar 11 at the lower open end of an. air-tank 12. The upper end and the s'de walls of the latter are air-tight, with the exception of openjings 13 near the bottom through said side walls. The air-pipe 9 projects upwardly into the tank 12" for a suitable distance above the openings 13-, and determines the height of the water-level in the air-tank. The latter .is submerged in water by reason of the connection of the; interior of the tank 7, through pipe 6, with A 'clean-out'pipe 1,5, controlled by a suitable stop-cock, is provided from the bottom of the tank'i'. v

In the operation of my' invention, any sudden force imparted to the water in the dischargev pipe 5 (service pipe or water main, as the through pipe 6 to the water in the tank 7, and thence through openings at the bottom of tank 12, to the water contained in the latter, and a resulting rise of the Waterin the latter will be resisted by the expansive action of the air'in the upper part of tank 12. The impact will be resisted and the pounding deadened by the elasticity of the air in tank l2rwhich acts as a cushion, and because the water the air-tank 12 is within, there will be no leakage of air through the walls of tank 12, and except for absorption by the water, the supply of air will remain unimpaired.

When it is required to renew or to regulate the supplyof air in, the tank 12, this will be done through the pi e 9, to the outer threaded end of which the hose of an airpump'may be attached and air pumped directly into the tank 12.

This device operates successfully to cushion the valves in and to insure a steady discharge from a hot water pump in which the the discharge pipe 5.

case may be), is passed on .95 pressure on the outside of as great as the air pressure in large measure to the proY1s1on of a Water chamber tor a relatively larger volume of water at the mouth oi: the pipe 6, into Which the hot water is discharged at each pistonstroke of the pump and drawn back again, without heating the water next to the top of tank 12 and around its sides so as to generate steam within the tank 12.

' WVhile I have described my invention with more or less minuteness as regards details of construction and arrangement, and as being cumstances may suggest or necessity render expedient.

,I claim:

1. The combination with a pipe'containing water under pressure, of a closed tank, a second pipe connecting the interior of the first pipe with the interior of the tank and filling the closed tank with water, a second tank within the first tank air tight except at openings through its lower portion, a stand pipe terminating at one end outside of the first tank and at its other end within the second tank'above the highest opening in the second tank, said second tank containing air which is subjected to the direct'pressure of the Water in the-tanks, the water of the first tank entirely surrounding the second tank, with a larger volume at 'the Copies of this patent may be obtained for five cents each by addressing the .Wash ington, n. c.

place of its water supply to regulate the temperature in the second tank.

2. The combination with a pipe contain- I ing water under pressure, of a closed tank, a second pipe connecting the interior of the first pipe with the interior of the tank and filling'the' closed tank with water, a second tankwithin the first tank air tight except at openings through its lower portion, a

stand pipe terminating at one end outside of the firsttank and at its other end within the second tank above the highest opening in the second tank, said second tank containing air which 'is subjected to the direct pressure of the water in the tanks, the water of the first tank entirely surrounding the second tank, with a larger volume at the place of its water supply to regulate the temperature in the second tank, and means for regulating the amount of air in the second tank.

' air tank'above the highestopening thereto and a cock toopen and closethe stand pipe.

In witness whereof, I have hereunto set my hand and seal at this 19th day of April, A. D. one thousand nine hundred and sixteen.

HOWARD H. YORK. [11.8.]

Gommissioner of Patents,

Indianapolis, Indiana, 

